Gluing and sheeting machine



J. A. HECKMAN I GLUING AND SHEETING MACHINE May 13, 1941.

Filed Feb. 24, '1938 4 Sheets-Sheet 1 lvlay 13, 1941. J, A, HECKMAN2,241,664

GLUING AND SHEETING MACHINE Filed Feb. 24, 1958 4 Sheets-Sheet 2 May 13,1941. J. A. HECKMAN 2,241,664

I GLUING AND SHEETING MACHINE I Filed Feb. 24, 1958 n 4 SheetS-Sheet 5May 13, 1941.

J. A. HECKMAN 2,241,664

GLUING AND SHEETING MACHINE Filed Feb. 24, 1958 4 Sheets-Sheet 4Patented May 13, 1941 UNITED sTATEs PATENT OFFICE John A. Beckman,Chicago, Ill., assignor to Miller Wrapping and Sealing Machine Company,Chicago, Ill., a corporation ot Illinois Application February 24, 193s,serial No. 192,332

An object of this invention is to provide a machine for automaticallyadvancing a web from a roll of Cellophane or the like, applying a stripof glue or wax to one or both side edges, apply- 'ing a line of glue orwax transversely of the web and'severing the web to form a sheet.

Another object is the provision of apparatus for applying a strip ofglue or a plurality of dots or a single dot of glue as desired to one orboth side edges.

Another object is to provide means for applying a transverse "line ofglue to a web or sheet.

Still another object is to provide a 'means for floating the gluingmechanism on the roll on which the web passes so 'as torender uniformthe application of glue to the web.

These and other objects, as will hereinafter appear, are accomplished bythis invention which is fully described in the following specificationand shown in the accompanying drawings in which l Figure l'is a sideelevation of a machineY einof Fig, 3;

Fig. '5 is an enlarged front elevation ofthe' transverse gluingmechanism of Figs. 2, 3 and 4 showing the glue pot partly in section,the gluing disk in an inoperative position wherein it seals the spoutfrom the glue pot;

Fig. 6 is a similar view'showing the gluing disk in operation whereinits periphery is re ceiving glue from the spout; Y ,Flg. 'l is a partialenlarged view on line 1-1 f Fig. 2; j Y

Fig. 8 is a partial enlarged vertical section 4on. line 8-8 of Fig. 2showing the cutting and longitudinal gluing mechanism;

Fig. 9 is a partial view on the broken of Fig. 2; and

Figs, 10, 11' and 12 are plan views of the sheet during the process ofbeing glued and cut. I

The embodiment illustrated comprises a gluing and sheeting machinehaving a main frame I3 having side frame members I4, I5. I

A roll A of Cellophane or the like is mounted to turn in the frame and aweb A1l passes up over l an idler roller I6 and over anvoperating rollerIl thence under a transverse gluing mechanism B and beneath a knife Cwhere the sheet is sevj ered. After this, the detached sheet Az (Fig,12)

passes on to the continuously operating belt conveyor I8 (Fig. 8) whichis driven in any suitable fashion and which is not shown in detail as itforms no part of the present invention. As the web passes under the rollIl it is glued along the lines D1 and D2 (Fig. 10) by the mechanismrepresented generally as D in Figs. 2 and 8. Then, after ythe sheet haspassed around the roll I'I and has been brought to rest, as will laterbe described, the transverse gluing mechanism B applies glue to thesheet beginning at the point B1 (Fig. 10) and traveling downward acrossoperations consists of an oscillating lever 20 which is connected to ashaft 2I which is mounted in suitable bracings on the frame of themachine. This shaft carries an operating lever l22 which is connected bymeans of a connecting rod 23 to a pin 24 on a gear 25 which is mountedon a shaft, not shown, and geared to a pinion 26 which is mounted on ashaft which also carries a sheave or pulley 21 which is driven by amotor 28 by means of asuitable belt 29.

The lever 20 has an extension 30 which carries a cam follower roller 30hwhich acts upon a cam 3| which is mounted on an oscillating lever 32which is pivotally mounted at 33 on the side of the frame. 'Ihe lever 32is connected to a vertical link 34 which connects at its upper end withthe outer end of a knife 35 (Fig. 2) which is connected atv the/oppositeend on-a pivot 33V and which is moved up and down about the pivot 36 asshown in full and dotted lines in Fig. 8.

vAs it descends, the movable knife 35 passes the stationary knife 3lover which passes the. sheet A1 thereby severing the same to produce thesheet A2.

Upon the lever 20 is mounted a member 38 which is adjustable up and downby means of a screw 39 so as to vary the length of web fed at eachactuation of the lever 20, the throw of the lever remaining constant. Abar 40 having a rack formed on its upper surface is connected at thisower end tov the member 38 while the rack meshes with a pinion 40'. Thepinion is connectedto the roll l1 by means of a suitable ratchetarrangement so that as thev bar 48 moves tothe right,-the roll i1 willbe normally driven to feed by means ora stop lssl on the block sa. Asthe forward the web A'.1, but upon reversal of movei l ment of the bar48, the roll I1 remains stationary.

The mechanism B for producing the glue line B2 will now bedescribed.This comprises a carriage 4| (Fig. 7) which is slidably mounted uponguide rods 42, 48, which are suitably Ycarried by the main frame. To thecarriage 4| is pivotally mounted a' member 44, means of a pin 45, the.

same being normally drawn down by. gravity assisted by a spring 45 (Fig.3). The member 44 carries a glue pot 41 which is secured thereto bymeans of a screw 48 (Fig. 5). The level of the glue or wax is shown bythe numeral 48.

A'gluing disk 58 is pivotally mountedat 5| on a lever 52 which in turnis pivotally mounted at 58 on the glue pot 41 in the normal inoperative`position shown inFig. 5. The disk 58 has a' flat periphery which restsagainst a spout 54 which connects with the bottom of the glue pot 41. Inthis position, the disk 58` which is wide enough to cover the spout 54serves to close the same so that glue or the like in the glue pot willnot flow out. The weight of the disk 58 normally serves to close theopening in the spout and gravity is assisted by a` spring 55 which isplaced about a screw 55 passing through an arm 51 rigidly mounted to theglue pot, said screw serving to regulate the distance the disk 58 canleave the spout 54. 'I'his distance will thus fix the depth of the filmof glue 58 of Fig. 6 which is shown being applied to the web A1 to formthe strip of glue B2 of Fig. 1l.

Thus it will be seen that glue will only be fed to the disk while it isin contact with the web.

The mechanism for bringing this disk into contact with the web will nowbe described. A cam follower block 58 is pivotally mounted on a pin 58in the member 44 and is normally pressed upwardly as viewed in Fig. 5and in a clockwise direction as viewed in Fig. 3 by means of a spring5|. The block 58 has a pin 52 on which is rotatablymountedva camfollower roller 58.

The carriage 4| is moved back and forth on the guides 42, 48 by means ofa steel rope 54 which is secured thereto by means of a screw 85 as shownin Fig. 1. Referring to Fig. 2, the rope 54 passes around sheaves 55, 51and 58 which are suitably mounted on the main frame. The two verticalsections of the rope 54 at the left of Fig. 2 are shown in Fig. 1 wherethey pass around sheaves 58, 18 which a're also carried on the mainframe. One end of the rope 54* passes around the sheave 58, then passesaround a sheave 1| on a lever 88* connected to the lever 88, and isfastened to a stationary pin 12 on the main frame.

The opposite end of the rope 54", after leaving the sheave 18, passesaround a sheave 18, thence around a sheave 14. also on thelever 88 andhas its end secured to'the main frame at 15.

Thus, it will be seen that as'the lever 28 isv roller moves forward. itfollows the cam' 18 as shown in the position 58* (Fis. 4) until itreaches a point near the opposite end of its travel 58b at which pointit engages a deflector 11 which forces it back against the action of thespring 5| and it follows tothe position 58h where it rests on the top ofa `cam 18. The vertical edge of the cam 15 prevents the roller fromagain climbing back on the latter cam and causes it to follow the topsurface ofthe cam 18.

As the carriage 4i is now returned toward the right in Fig. 4, theroller 58 drops off the end of the cam 18 as shown at 58. Up to thistime,

the gluing mechanism of Fig. 5 has been raised so that the disk 58 isout of contact with the web A1, but as the roller 58 runs oi the cam 18the disk 58 is droppedinto contact with the web A1 as shown in Fig.-4'and as the gluing mechanism is propelled to the right, the disk 58will remain in contact with the web until the roller reaches a position58d in which it runs up the face of an inclined cam 18. Between thepositions of rollers 58 and 58d, the disk 58 has been in contact withthe web A1 and has rolled thereon thereby depositing a strip of glue Bzas shown in Figs. 4 and 6.

The roller then continues to move to the right in rocked back and forth,the rope 54 will be fed back Iand forthl thereby drawing with it thecarriage 4| of Fig. 7- and the gluing disk 58. This disk is raised andlowered by means of longitudinal cams over which the cam follower roller58 passes. These cams areshown in Figs. 3 and 4. This transverse gluingmechanism is normally in the position shown at the left hand side ofFig. 3 and the right hand side of Fig. 4.

' With the parts in this position, as the carriage -moves to the rightin Fig. 3 and to the left in Fig.

4, the roller 58 rides up on a runway 16 and is held there longitudinalcam or by the spring 5I and Fig;4 from the position 58d to the position58 at which point'it has passed the end of the cam 15 and the spring 5|again forces the roller over to a position where it will again ride upontop of the cam 15 when the follower is again' moved to the left.

'I'he cams 18 and 18 are mounted on a screw 88 which has right handthreads on one end and left hand threads on the other, the screwbeingsuitably journaled in theframe that supports the guides 42 and 48 andhaving an adjusting handle 8| for rotating it soas to adjustthe distancebetween the cams 18 and 18, thereby adjusting the length of the gluedstrip B.

The mechanism for applying' the longitudinal strips of glue D1 and Dwill now be described. The parallel gluing mechanisms D of.Flg. 2 and 8are mounted onvarms 82 which are slidably and adjustably mounted upon ahollow shaft 88 which carries a spline or key 84, these arms beingadjustable longitudinally of the shaft 88 by means of the screws and key84. This shaft is -rotatable in suitable lbearings 85, 81 which arecarried by the main frame.

The arm 82 (Fig. 8) carries a guide pin 88 on which is slidably mounteda member 89 which has an adjusting screw 88 at its lower end, the headof this screw normally being held up against the end of the pin 88 bymeans of a spring 8|. The member 88 has secured thereto a glue pot 82 inwhich rotates a gluing disk 88 which dips in the glue, the level of thelatter being shown by the number 84. The glue pot is covered by asuitable adjustable lid having a slot through which the glue disk 88operates. A finger 85 at each side of this disk removes glue from thesides of the disk. A pressure roller 85 is mounted to roll on the pin 81at the upper end of -a pressure lever 88 which is pivotally connected tothe upper end of the lever 82 by means oi' pin 88. A

, spring :|88 connects .the levers 82 and 88 and its center lying insidethe pin 88 constantly tending to keep the roller 85 in contact with theroll I1 so as to exert a slight pressure on the web'All contact with theweb and consequently no glue is applied. When, however, the gluing diskis moved back to the full line position'of .the gluing disk I3, thelatter is in contact with the web and glue will be applied thereto. toform the 'longitudinal glue lines DI, D2 of Fig. l0.

The method of moving the shaft 03 to accomplish this will now bedescribed. Referring to Fig. 1, a cam follower is mounted on the end ofa lever |02 which is pivotally mounted at |03 on the side of the frame.Cams |04 and |05 are mounted on a carriage |00 which is slidably mountedon guides |01 which are carried by a bracket |00 secured to the mainframe. The carriage is connected by means of a link |09 to theoscillating lever 20 so as to be moved back and forth as the lever isoscillated.

The cam |04 has a support |04'I which is threaded to receive anadjusting screw ||0 which has an adjusting lever Similarly, the cam |05has a support |05'I which is threaded to receive a screw ||2 which hasan adjusting lever |'|3. Thus it will be seen that eachof the' cams |04and |05 is individually' adjustable back and forth with respect to thefollower |0| with which they cooperate. As will later be seen, thegluing mechanism is held in the dotted line position of Fig. 8 in whichit is inoperative so long as the follower |0| rides on top of either ofthe cams |04 or |05. By bringing these cams therefore together, neitherof the longitudinal glue lines D1 or D2 would be formed on the web. By areverse mechanism, however, which will later be described, this methodof operation will just be reversed and gluing will take-place only whenthe follower |0| rides on top of one or other of the cams |04 or |05.The cam follower lever |02 (Fig. 9) carries two projections 4 and ||5.The shaft 83 is hollow and journaled therein for oscillation is areversing shaft ||6 having a reversing lever which is normally urgedtoward the right by means of a spring ||8. The opposite end of the shaft||6 carries a reversing lever I0 which has one or more teeth |20 adaptedtoengage in slots |2| in a clutch |22 secured to the end of the shaft83. The outer end of the reversing lever ||9 is provided with adjustingscrews |23, I 24. 'I'he screw |23 is adapted to engage the projection I4while the screw |24 engages the projection I I'5.

Normally this reversing mechanism will be operated in the full lineposition in which the lever H9 is operated by the projection ||4 on thecam follower lever. In this position, glue will be applied-by the gluingdisk 93 only so long as the follower I 0| does not ride upon either ofthe cams |04 or |05. So long as it does ride upon one of these cams, thegluing mechanism D will be held in the dotted line position of Fig, 8and is released to the full line position when the follower runs olfthese cams. It will be apparent, however, that by reversing the lever I9to the dotted line position of Fig. 9, the action of the shaft 83 willbe exactly reversed and the glue will'be applied so long as the follower|0| is raised by either of the cams |04 or |05, and that no glue will beapplied when the cam follower is off both of these cams.

Thus it will be seen that this latter arrangement in which the lever ||3is in the dotted line position of Fig. 9, two spots of glue may beapplied instead of one, or a single spot of glue may be applied at oneend only of the web. 'Ihis is particularly useful where the sheet to becut is quite small and it is necessary to apply a spot or line of glueto the web considerably in advance 'of cutting the sheet, or in the caseof a large sheet.

Thus it will be seen that a very exible'arrangement has been providedfor'applying glue to sheets covering a wide variety of shapes and sizes.If desired, the glue may be replaced by a wax. After the wax has' beenapplied to the sheet and cooled, it may be heated to cause overlappingportions of the sheet when folded about a package to adhere.

I claim:

l. In mechanism of the class described, means for intermittentlyadvancing a web, means for applying glue to a predetermined line alongone edge of the web while it is advancing, and transversely movablemeans for applying a line of glue transversely of the web.

2. In mechanism of the class described, a roll over which passes a web,a glue pot having a gluing disk rotatable therein to pick up a film ofglue on its periphery, a lever mounted to rotate about an axis, the gluepot being slidably and yieldably mounted on the lever, and means formoving the lever so that the disk will be moved into and out ofengagement with the web as it passes around the roll as the lever ismoved.

3. In mechanism of the class described, a roll over which passes a web,a glue pot having a gluing disk rotatable therein to pick up a film onits periphery, a lever mounted to rotate about an axis, the glue potbeing slidably mounted on the lever, a stop for the glue pot, a springfor normally yieldably holding the glue pot against the stop, and meansfor moving the lever so that the disk will be moved into and out ofengagement with the web on the roller as the lever is moved.

4. In mechanism of the class described, a roll over which passes a web,a glue pot having a gluing disk rotatable therein to pick up a film ofglue on its periphery, a member on which the glue pot is slidablymounted, a stop for limiting the upper movement of the glue pot, aspring tending to hold the glue pot in engagement with the stop, andmeans for moving the member to cause the gluing disk to engage the web.

5. In mechanism of the class described, a roll over which passes a web,a blue pot having a gluing disk rotatable therein to pick up a film ofglue on its periphery, a lever mounted on a shaft, the glue pot beingoperably mounted on the lever, and means for rocking the shaft to causethe disk to engage the web as it passes over the roller, said meansincluding a cam, a cam follower, a cam follower lever, and a leveroperably connecting the cam follower lever to the shaft, thelast-mentioned lever being reversible so as to cause the action of thegluing disk to be reversed upon motion of the cam follower.

6. In mechanism of the class described, a roll over which passes a web,a glue pot having a gluing disk rotatable therein to pick up a film ofglue on its periphery, a lever mounted to rotate about an axis, the gluepot being slidably and yieldably mounted on the lever, means for movingthe lever so that the disk will be moved into and out of egagement withthe web as it passes around. the roll as the lever is moved, a secondlever pivotally mounted on the end of the firstmentioned lever, a rolleron the free end of the second lever, and spring means for urging theroller toward the roll to yieldably hold the web against the roll.

7. In a gluing and sheeting machine, means for intermittently advancinga web to be gluedand sheeted, means for applying a line ot glue to oneside oi the web as it is advanced, means traveling transversely o1' theweb and movable into and'out of contact therewith for applying atransverse line of glue, means for adjusting the range of contact of theglue-applying means with the web to limit the lengths and positions ofthe lines of glue with respect to the web, and means for cutting a glued`sheet from the web.

8. In a gluing and sheeting machine, means for intermittently advancing-a web to be glued and sheeted, means for applying a line of glue to oneside of the web as it is'advanced, means traveling transversely of theweb for applying a transverse line of glue, and mounted for movementinto and out of contact with the web, means for actuating saidglue-applying means including cams, and means for adjusting said cams tovary the lengths and positions of the lines of gluing contact Withrespect to the Web.

9. In a gluing and sheeting machine, means for intermittently advancinga web to be glued and sheeted, means for applying a line of glue to oneside of the web as it is advanced, means traveling transversely of theweb for applying a transverse line of glue, and mounted for movementinto and out of contact with the web, means for actuating saidglue-applying means including cams, means for adjusting said cams tovary the lengths and positions of the lines of gluing contact withrespect to the web, and means for reversing the action of the cams withrespect to the glue-applying means.

10. In a gluing and sheeting machine, means for intermittently advancinga web to be glued and sheeted, means for applying a line of glue to oneside of the web as it is advanced, means traveling transversely of theweb and movable into and out of contact therewith for applying atransverse line of glue, and means for adjusting the range of contact ofthe glue-applying means with the web to limit the lengths and positionsof the lines of glue with respect to the web.

11. In a gluing mechanism, means for advancing a web, a glue pot havinga spout, a gluing disk having its periphery in close proximity to thespout and rotatably mounted upon an arm which is pivotally mounted withArespect to the spout, the glue pot being pivotally mounted at a pointremote from the disk torpormally holding the disk in closing contactwith the spout, means for guiding the glue pot and disk in move- .mentsacross the face of the web, a runway in contiguous relation to saidguiding means, and an element connected with the glue pot and adapted totravel upon said runway for tilting the .glue pot toward and from theweb to eilect contact with the web and by relative movement of the gluepot and disk to open the spout for the discharge of glue and by reversemovement to close the spout.

12. In a gluing mechanism, a glue pot having a spout, means forimparting relative movements of the spout over the face o! a web, agluing device normally standing in yieldable contact with the spout toclose the same against the discharge of glue, and automatic means formoving the spout and gluing device toward and from the face of the webat predetermined intervals and adapted when the gluing device contactsthe web, by additional movement of the spout toward the web, to causewithdrawal of the gluing device from contact with the spout to permitthe discharge of glue.

13. In a gluing mechanism, a glue pot having a spout, means forimparting relative movements of the spout over the face of a web, agluing device normally standing in yieldable contact with the spout toclose the same against the discharge of glue, automatic means for movingthe spout and gluing device toward and from the face of the web atpredetermined intervals and adapted when the gluing device contacts theweb, by additional movement of the spout toward the web, to causewithdrawal of the gluing device from contact with the spout to permitthe discharge of glue, said automatic means including a runway havingthereon a cam, and an element connected with the spout and adapted totravel upon said runway and cam.

JOHN A. HECKMAN.

